LOCTITE SI 5900 Instant Gasket


Silicone-based gasketing product suitable for various substrates. Good resistance to oil and joint movement.

SKU: LT5900 Categories: ,


LOCTITE SI 5900 is a low strength, moisture-cured, thixotropic silicone-based paste. Typical applications include stamped sheet metal covers (timing covers and oil sumps). It exhibits a rapid skin-over time of 15 min and is suitable for gaps up to 1 mm. As a single component it requires no mixing.

  • Good oil resistance
  • Withstands joint movement
  • Adheres to metal, plastic, glass and ceramic materials
  • Reduces migration of liquid after application

Item number 5900
Color Black
Viscosity Paste
Gap Fill (mm) 6.35
Hardness A35
Temp. Range (℃) -55ºC~260ºC
Cure Speed
(Fixture / Full Cure)
20 min. / 24 hr.

LOCTITE SI 5900 Technical Data Sheet

Previous Page

Additional information



Go to Top